The Random Variable X Represents the Number of Computers That

question 3

Multiple Choice

The random variable x represents the number of computers that families have along with the correspondingprobabilities. Find the mean and standard deviation for the random variable x. $$\begin{array} { c | c } \mathrm { x } & \mathrm { P } ( \mathrm { x } ) \\\hline 0 & 0.49 \\1 & 0.05 \\2 & 0.32 \\3 & 0.07 \\4 & 0.07\end{array}$$

• A) mean: 1.18; standard deviation: 1.30
• B) mean: 1.39; standard deviation: 0.64
• C) mean: 1.39; standard deviation: 0.80
• D) mean: 1.18; standard deviation: 0.64

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Definitions:

Assets Safeguarded

Measures or controls implemented to protect a company’s assets from theft, damage, or misuse.

Internal Control System

A system within an organization that directs, monitors, and measures its resources and processes to achieve objectives, such as financial reliability, operational efficiency, and compliance with laws and regulations.

Control Environment

The set of standards, processes, and structures that provide the basis for carrying out internal control across the organization. It sets the tone for the importance of internal control and influences the control consciousness of its people.

Proofs And Security Measures

Proofs and security measures refer to the techniques and processes employed to verify the accuracy of financial information and protect it against theft, fraud, and other risks.